- Sudoku Puzzle Book, 500 Medium Puzzles: Single Difficulty Level for No Wasted Puzzles
- Sudoku Puzzle Book, 1,600 Puzzles, 800 Medium and 800 Hard: Improve Your Game with This Two Level Bargain Size Book
- Sudoku Puzzle Book, 1,000 Puzzles, 500 HARD and 500 EXTRA HARD: Improve Your Game With This Two Level BARGAIN SIZE Book
- Sudoku Puzzle Book, 800 Medium Puzzles: Single Difficulty Level for No Wasted Puzzles
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